How do I detect apple silicon (M1) vs. intel in swift 5.0?

Question

I make a call to ffmpeg and ffprobe. This issue I have is that Brew installs them in different locations based on architecture. On an Intel machine the binaries are installed in /usr/local/bin, but on the M1 the binaries are installed in /opt/homebrew/bin.

I'd like to do something like:

let ffprobe = Process()
if intel {
    ffprobe.executableURL = URL(fileURLWithPath: "/usr/local/bin/ffprobe")
} else {
    ffprobe.executableURL = URL(fileURLWithPath: "/opt/homebrew/bin/ffprobe")
}

I have searched for this and cannot find anything.

Answer 1

I got this answer from the Apple Developer Forums:

var systeminfo = utsname()
uname(&systeminfo)
let machine = withUnsafeBytes(of: &systeminfo.machine) {bufPtr->String in
    let data = Data(bufPtr)
    if let lastIndex = data.lastIndex(where: {$0 != 0}) {
        return String(data: data[0...lastIndex], encoding: .isoLatin1)!
    } else {
        return String(data: data, encoding: .isoLatin1)!
    }
}
print(machine)

Here's the link for reference Apple Developer Forum.